Crimson Kingbolt

Crimson Kingbolt is a laid-back high-school freshman and Burst Linker who acts as a mentor to Ruka Asato and Itosu Mana. He teaches them the rules of Brain Burst and tells them never to use acceleration selfishly or discuss the Accelerated World with anyone except other Burst Linkers. He is willing to spend his own burst points and put himself in danger to help the two.